Clean your windshild the best you can. The applicator needs to be squeezed to break the inner vial, and dispense the fluid. Use the applicator pad to spread the liquid across the windshield. You should have enough to do all windows. Wait at least ten minutes.{warmer weather would be better} You will see it bubble slightly as it dries. Wipe the haze off with a paper towel. I did my windshield twice. Worth the price, excellent product.